The Three-Day Reign (Korean: 삼일천하) also known as Three Days of Their Reign is a 1973 South Korean film directed by Shin Sang-ok.

[1] During the last days of the Yi dynasty, conflict arises between the China-leaning conservatives, and the Western-learning and Japan-leaning reformers over how to rule Korea in the future.

The reformer Kim Okgyun helps persuade the king to announce Korea's independence, breaking with China.

When a conservative agent informs China, Chinese troops enter Korea and end the reign of independence after three days.

This South Korean film–related article is a stub.